Improvement in pulley-blocks



THOMAS B. BROWN.

Improvement in Pulley-Blocks.

No. 126,376, Patented May7,1872..

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AALPHOI'U UIHUGRAPKIC CU N. Y (OSBORNE: PROCESS.

UNITED STATES THOMAS B. BROWN, OF FAIRFIELD, MAINE, ASSIGNOR OF ONE-HALF OF HIS RIGHT TO GERALD 86 ALLEN, OF SAME PLACE.

IMPROVEMENT IN PULLEV-BLOCKS.

Specification forming part of Letters Patent No. 126,376, dated May 7, 1872 antedated April 20, 1872.

To all whom it may concern: The advantage over ordinary blocks consists Be it known that I, THOMAS B. BROWN, of in saving the wear on rigging, and requiring Fairfield, in the county of Somerset and State less power to work the same.

of Maine, have invented a new and useful Im- I claim provementin Blooks,calledRevolving Sides, The revolving sides, to be used with the of which the following description is full and sheave, as and for the purpose described.

exact. THOMAS B. BROWN.

The revolving sides A A are separate from Witnesses:

the sheave or middle piece B, and each re- E. H. EVANS,

volves separately on the same axle O. F. M. COTTON. 

